Choker



Sept. 12, 1933. D D T1355 1,926,413

CHOKER Filed Sept. 25, 1931 Patented Sept. 12, 1933 UMTED STATES CHOKERDick D. Tibbs, Fort Worth, Tex.

Application September 25, 1931 Serial No. 565,137

1 Claim.

This invention relates to a choker.

An object of the invention is to provide a choker of the characterdescribed designed to be connected into a iiuid conducting line, for thepurpose of controlling the flow of fluid therethrough.

Another object of the invention is to provide a choker of the characterdescribed that is readily adjustable so as to vary the capacity thereofto the end that the quantity of fluid flowing through the line may becorrespondingly regulated.

The choker has been specially designed for use on flow lines from oilwells from which the oil flows under pressure and where it is desirablethat the quantity of oil flowing from the well be restricted andcontrolled.

With the above and other objects in view the invention has particularrelation to certain novel features of construction, operation andarrangement of parts, an example of which is given in this specificationand illustrated in the accompanying drawing, wherein:

Figure 1 shows a longitudinal sectional view o m the choker, and

Figures 2 and 3 show end views taken from opposite ends of the choker.

In the drawing, the numeral 1 designates a T connection having thetubular nipple 2 to which the outow line leading from an oil well orother source of pressure may be connected. The body 3 is tubular in formand at one end is provided with an inside outwardly tapering seat 4. Aflow bean 5 is fitted into said end and the inner end of said bean isenlarged forming the head 6 having the outwardly tapering annular face'7 which fits closely against said seat 4A and also has a notch 8 inwhich the inner end of the pin 9 engages. Said pin is tted through thebody 3 and holds the bean against turning. The now bean 5 has aplurality of longitudinal flowways 10 therethrough. The inner end of thebean 5 is formed with a flat smooth end face 11 against which thedisc-like valve 12 ts.

Screwed into the other end of the body 3 there r is a plug 13 having thedeep axial socket 14 in its outer end and the inner end of this socketis reduced forming a bearing 15. There is a Valve stem 16 which worksthrough the bearing 15 and whose inner end is reduced forming theannular shoulder 17 thereon. The reduced end of said stern works in asocket 18 in the valve 12 and has a lengthwise slot 19 therethrough toreceive the anchor pin 20 whose ends are anchored to saidV valve.Surrounding the reduced end of the valve stem and interposed betweensaid valve and the shoulder 17 there is a strong coil spring 21.

Surrounding the stem 16 and located Within the socket 14 there is thepacking 22 which is conned between the junk ring 23 on one side and 60the gland nut 24, threaded into the outer end of the socket 14, on theother side. The junk ring 23 abuts the annular abutment 25 on the stem16. The gland nut 24 may be screwed up to give the desired compressionto the packing 22 and 65 cut out and enlarge said flow Way when the oilis ilowing under pressure and in such case, when it is desired tofurther restrict the flow of oil, the valve 12 may be turned intoalignment with a ow way of less capacity and thevolume of oil flowingfrom the Well may thus be regulated at will.

It is to be understood that a delivery line may be connected ontothethreaded end 27 of Ythe body 3 through which the owing fluid may be n:conducted to the desired location. There is a finger, or pointer, 28,secured to the outer end of the stem 16 and Whose inner end is adjacentthe annular gauge plate 29 secured to the corresponding end of the body3. This plate 29 has the markings 30 arranged to correspond '90 with thecorresponding iiow ways 10 and the position of the nger 29 will thusindicate Vthe flow way aligned with the valve opening 26.

The drawing and description disclose what is now considered to be apreferred form of the invention by way of illustration only while thebroad principle of the invention will be defined by the -appended claim.

What I claim is:

A choker comprising a tubular body having one `endl reduced forming aninside annular-seat, a

flow bean fitted into said reduced end and having its inner end enlargedand provided with ran annular face adapted to closely fit against saidseat means to prevent the bean from turning relative to said body, saidW bean having a plurality of longitudinal flow ways therethrough and theinner end of the bean being formed with a ilat end face forming a valveseat, a plug screwed into the large end of said body having a deep axial110 By turning the 70 retaining said packing in place, said valve beingprovided with an opening and being turnable, through said stem, wherebysaid opening may be brought into registration with a selected flow Way.

DICK D. TIBBS.

